ST600s | Err.26, what does this message mean, what can be done?

If the error message Err.26 appears on the display of the frequency inverter, it is a control panel communication error.

Causes:

• The control panel cable is connected incorrectly or not at all.
• The control panel cable is too long and is subject to strong interference.
• Circuit errors have occurred in the control panel or in the communication section of the main board.

Solutions:

• Check the control panel cables to see if there is a fault.
• Check the surroundings to exclude a source of interference.
• Replace the hardware and request maintenance service.
• xxx

If none of these error sources apply, please contact technical support.

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